Allen w



(No Model.)

A. 'Wg SWIFT.

LUBRICAI'OB..y

WITNEEEEE- i Unirse STATES PATENT narnia.

ALLEN WV. SWIFT, OF ELMIRA, NEW YORK.

LUBRICATO R.

SPECIFICATION forming part of Letters Patent No. 265,180, dated September 26, 1882. Application filed August 21, 1882. (No model.)

To all 'whom it may concern:

Be it known that I, ALLEN W. SWIFT, of Elmira, in the county ofUhemung, in theState of New York, have invented new and useful Improvements in 4Lubricators, of which the following, taken iu connection with the accomsameis rendered more efficient and more reliable, all as' hereinafter more fullyexplained, and set forth in the claims.

Referring to the annexed drawings, Figure l is a vertical transverse section of my improved lubricator. Fig. 2 is a transverse section on line and Fig. 3 is a detached top view ot' the removable thimble which closes the water-outlet of the lubricant-cup.

Similar `letters ot1 reference indicate corresponding parts.

F denotes the lubricant-cup, preferably of cylindrical form, and cast 'of metalin one piece with its base c and capf, and thus forming a very strong and perfectly tight cup. Its base e is provided with a screw-threaded boss or extension, c', through which is extended a channel or orifice, l, for the discharge of the surplus water which may accumulate in the cup F, said orifice l being closed by a screw-threaded thimble, T, fitted 4to the extension c', and having through it a channel, n, the upper end of Vwhich is out of range ,with the orifice laforesaid; Inside of the thimble is placed a disk, s, of copper, lead, or other soft metal, to form a packing over the oriiicel. The adjacent face or the boss c is provided around the orifice Z with an annular ridge, m, which, in screwing up the thimble, embeds itself in the disk r, and forms therein an annular groove, s, thus effectually preventing leakage.

When it is desired to draw some of the water out ofthe cup F it is only necessary to partly unscrew or loosen the thimble. This will allow the water to escape from the orifice Z laterally to the channel n, which is' extended `through the disk r. The capfof the cup is provided with a screw-threaded orifice, g, by which the cup F is screwed in a suspended position onto a nipple, D, on the horizontal supporting-arm A, by means of which arm the lubricator is attached to the steam-pipe ot' the engine. This supporting-arm is provided with a cavity, (l, which is extended to the free end of said arm and closed thereat by a glass or other transparent plate, d. A channel, a, extending froxnthe cavity (l to the opposite end of the arm A, -allows the lubricant to flow from the cavity C to the steam-pipe S, to which the lubricatorisattached. ThecavityUisarranged in the supporting-arm A, and communicating directly with the interior ot' the cup F, suspendedfrom the arm A in the manner shown, forms an extension .of the lubricant-reservoir, and thus adds to the capacity of the lubricator, the lubricant being introduced into the reservoir by an inlet 011 top of the supplemental reservoir closed by a suitable stopper, G.

Upon top'ot' the supplemental reservoir C is mounted a steam-condensing chamber, E, which receives steam for the steam-pi pes S, by a channel, c, extending part way into the attached end of the supporting-arm A, and a pipe, K, extended from the channel o to the top of the condenser E', and terminating thereat, as shown. The attachment ot' the condenser E with the arm A, I eiiect by a hollow externally-screw-threaded upward-projecting nipple, N, on top of said arm, and providing the base of the condenser with a screw-threaded oritce iitted to the ni-ppleN. The condenser E, being thus separable from the arm A, facilitat-es the construction and repairs of said parts. Directly underneath the condenser E the cavity is provided with a trap, b, formed on the upper portion of the interior thereof, thus placing the trap'inside of the lubricant-reservoir at the extreme upper part thereof,iand consequently subjecting the lubricant to the heatinginfluence of said trap, invariably to the same extent, until the lubricant is exhausted from the reservoir.

The trap b consists oi' a small chamber cast on the interior of the arm A and extended toward the glass or observation-port d on the free end of the arm A. Facing this port the trap is provided with a discharge-opening, c, which 1 prefer to form of a polished plate applied to the trap, so as to more eftectualiy eX- pose, by reection of the light through the glass d,tl1e egress ofwat-er from the opening c, as described in my prior patent of March 21, 1882. 'The trap b is open to the hollow nipple N, and is provided directly under said nipple with a depression, h, into which is extended a tube or drip-pipe, t', pendent from a disk, w, which is closely ttted and retained in the upper end of the nipple N. The ingress of steam and egress of lubricant are regulated by the usual valves, u and u, applied respectively to the channels o and a in the supporting-arm.

Aside from the advantages already cited, it will be observed that by the arrangement of the sight-feed of water at the extreme top of the lubricant-reservoir the operation ot' the lubricator can be observed clearly and distinctly throughout until the last of the lubricant is exhausted from the lubricator. The aforesaid arrangement also admits of filling the cup to the highest point, and the operation of the tilling can be observed through the port d, so as to guard against overiiowing. and the usual glass tubes and drip-tubes inside of the cup are dispensed with.

The attachment of the cup F to the arm A by the screw-threaded orice q in the cap f screwing onto the nipple D of thearm dispenses with the ext-ra coupling-bolts or tube heretofore extended longitudinallyth rough the center of the cup. Furthermore, the superstructed condenser E, with the steam-duct K, terminating at the upper end ofthe condenser, ei'ectually prevents the lubricant from entering said parts.

Having described my invention, wh at I claim as new, and desire to secure by Letters Patent,

isf 1. In a displacement-lubricator, the combination and arrangement, with the lubricantreservoir, of a water-trap situated inside of said reservoir, at the top of same, substantially as setvforth.

2. The combination, with the lubricant-cup, of a supporting-arm connected to the top of the cup and provided with a supplemental lubricant-reservoir connected with the cup and tapped by the lubricant-eduction channel, substantially as shown and set forth.

3. The combination, with a lubricant-cup, of a supplemental lubricant-reservoir applied to and communicating with the top of the cup, and with an eduction pipe or channel, a waterinlet to the supplemental reservoir, and an observation-port on said reservoir in proximity to the Water-inlet, as and for the purposes set forth.

4. In a displacement-lubricator, the combination, with the lubricant-reservoir, of a steamcondenser arranged above the said reservoir, a water-trap situated inside of the reservoir and communicating with the condenser, the dischargeopening ofthe trap, arranged at the eX- treme upper portion of the lubricant-reservoir, and an observing-port in front of the waterdischarge, as set forth and shown.

5. In a displacement-lubricator, the combination, with the supporting-arm A, of the suspended lubricant-cup and its base and cap, formed in one piece, substantially as shown and described.

6. The supporting-arm A, provided with the cavity C, nipple D, and lubricant-duct a, the

trap b, formed on the upper portion of the cavity G, and provided with the vent o, and the transparent plate d, secured in the arm A in front of the vent o, in connection with the superimposed condensing-chamber E and the pendent lubricant-cup F, substantially as described and shown.

7. In combination with the supporting-arm A, provided with thescrew-threaded nipple D, the cup F, formed iu one piece with its base c and capf, and provided with the screwthreaded orifice g for the attachment of the cup to the supporting-arm, substantially as described and shown.

8. In combination with the cup F the supporting-arm A, provided with the cavity G and with the transparent front d and eductionchannel a, the condensing-chamber E, mounted on the arm A over the cavity C, the steampipe K, connected to and terminating at the top of the chamber C, the trap I), located in the cavity C, directly under the condenser, and having the depression h and end discharge c, and the drip-pipe t', extended from the base of the condensing-chamber to the depression h of the trap, all constructed and combined substantially in the Amanner described and shown.

9. The combination of the cup F, having the screw-threaded extension e', provided With the IOO IOS

orifice-l and annular ridge m, the screw-thready IIO 

